There are many advantages for having a responsive web design. You will not have to supply your prospective visitors with multiple URLs for accessing the web on different devices. Multiple URLs means multiple websites. Maintaining all these websites could be tedious and very expensive. Also, a responsive web design keeps you from spending extra money on designing multiple websites for supporting different devices. When you want to make changes to your current website, having a responsive web design will allow you to make alterations to only one design. A mobile web design, on one hand, will need you to make specific changes to all the multiple websites you own. Building a responsive web design also increases your chances for greater ROI, since your website will become regularly user-friendly across different devices.